US893262A - Swivel-pendant for watchcases. - Google Patents

Description

PATENTBD JULY 14, 1908;

W. E. PORTER. SWIVEL PENDANT FOR WATGHCA SES.

APPLIGATION FILED MAY 11, 1908.

UNITED STATES PATENT onruon.

WILSON E. PORTER, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO NEW HA VENCLOCK 00., OF NEW HAVEN, CONNECTICUT, A CORPORATION.

SWIVEL-PENDANT FOR WATCHOASES.

To all whom it may concern: 4

Be it known that 1, WILSON E. PORTER, a citizen of the United States, residing at New Haven, in the county of New Haven and State of Connecticut, have invented a new and useful Improvement in Swivel-Pendants for I/Vatchcases and I do hereby declare the following, when taken in connection with the accompanying drawings, and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in

Figure 1 a view in side elevation showing a watch pendant constructed in accordance with my invention. Fig. 2 an enlarged view thereof in vertical longitudinal section with the main portion of the bail or ring broken away. Fig. 3 Ya detached view in side elevation of the pendant stem. Fig. 4 a plan view thereof. Fig. 5 a detached plan view of the swivel head of the pendant showing the ends of the bail.- Fig. 6 a view of the swivelhead of the pendant in vertical longitudinal section.

My invention relates to an improvement in swivel pendants for watch cases, the object being to produce a simple, convenient, durable and reliable construction dispensing with the use of solder for the attachment of the swivel to the stem.

With these ends in View my invention consists in the construction hereinafter described and pointed out in the claims.

In carrying out my invention as herein shown, I employ a hollow stem 2 formed at its lower end with a bearing shoulder 3 which rests upon the periphery of the center ring 4 of the watch case, the extreme lower end of the stem being formed with a sleeve 5 smaller in diameter than the shoulder 3 and extending through the ring 4 to which it is rigidly secured preferably by means of solder 7. The upper end of the stem is made in the form of a cylindrical bearing sleeve 8 terminating at its lower end in an annular bearing shoulder 9 and at its upper end in an annular retaining flange 10, the sleeve being converted by means of four equi-distant longitudinal slots 11 into as many segmental spring fingers capable of being crowded together so as to take up the spaces represented by the slots 11 when pressure is brought to bear upon the upper face of the retaining flange which is for that purpose formed with Specification of Letters Patent.

Application filed May 11, 1908.

Patented July 14, 1908.

Serial No. 432,245.

a bevel 12. With such a stem I employ an ovoidal swivel-head 13 formed in its ends with recesses 14 for the reception of the ends of the bail or pendant ring 15 which may be of any approved construction, but which has, as herein shown, the flattened form. The swivel-head 13 is provided with a central sleeve 16 adapted to fit snugly over the bearingsleeve 8 to which it corresponds in length, the lower end of the sleeve 16 resting upon the bearing shoulder 9 at the lower end of the sleeve 8 andthe upper end of the.

sleeve 16 being engaged in the assembled structure with the lower face of the overhanging retaining flange 10 at the upper end of the sleeve 8.

It will be readily understood that when the lower end of the sleeve 9 is pressed down upon the bevel 12 of the retaining flange 10 that the four spring arms which together form the sleeve 8 will be forced together sufficiently to permit the sleeve 16 to pass down over the sleeve 8 into its home position. When that position is reached the sections of the flange 10 carried by the arms 4 will spring outward over the upper end of the sleeve 16 and couple the head 13 to the pendant 2 without any use of solder for the purpose, the head being left free to turn or swivel upon the stem. The winding and setting stem 17 is now passed down through the pendant stem 2 in the usual manner, the crown 18 at the outer end of the winding and setting stem 17 fitting down over the upper end of the sleeve 8 and concealing and protecting the coupling between the head 13 and the stem 2, namely, the four spring arms forming the sleeve 8 and their respective sections of the retaining flange 10. For the purpose of letting the crown 18 down into the swivel head 13 the upper portion of the same is deeply recessed as at 19.

I claim 1. In a swivel-pendant for watch cases, the combination with a pendant-stem having a longitudinally split bearing sleeve provided at its outer end with a retaining flange, of a swivel-head adapted to be crowded over the said bearing-sleeve and engaged by the said flange, a ring carried by the said swivelhead, a winding-andsetting stem passing through the pendant-stem, and a crown located upon the outer end of the winding-andsetting stem.

2. In a swivel pendant for watch cases,

the combination with a hollow pendant-stem formed with a longitudinally split bearingsleeve terminating at its inner end in a bearing-shoulder, and at its outer end in a retaining flange, of a swivel-head formed with an internal sleeve adapted to fit over and turn upon the said bearing-sleeve, the said head coming to a bearing upon the said bearing shoulder and the retaining flange, of the bearing-sleeve snapping over the outer end of the sleeve of the pendant stern, a windingand-setting stern passing through the hollow pendant stem, a crown located upon the outer end of the winding-and-setting stern, and a ring or bail pivotally mounted in the swivel-head.

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

WILSON E. PORTER.

Images